Smartwool Men's PhD Wind Tight 46% Nylon, 37% Merino Wool, 17%Elastane Knit in Vietnam Regular Fit; Mid Rise Striped draw cord for customizable waist fit Secure zip pocket on back with semi-auto locking zipper pull and drop-in pocket on left side for additional storage Reflective 7" (17 cm) ankle zips; 360 reflectivity for visibility Size M inseam: 28.5" (72cm) - Style: SW016105